An evaluation of the relative importance of the effects of climate change and groundwater extraction on seawater intrusion in coastal aquifers in Atlantic Canada

摘要: To investigate the relative importance of projected sea-level rise, climate change effects on recharge, and groundwater extraction seawater intrusion in important coastal aquifers Atlantic Canada, a three-dimensional numerical model density-dependent flow coupled with solute transport was developed for Richibucto region New Brunswick. The used, an efficient 2k factorial design approach, to perform simulations period 2011–2100. results analyses indicate that three factors investigated varies depending location considered. effect declining recharge is most significant at shallow intermediate depths along freshwater–seawater transition zone, while increasing pumping rates dominates relatively close well field. rise shown be only much deeper inland toe zone. spatial variation related how different boundary conditions influence freshwater locations within domain. This investigation indicates has least (of considered) future sandstone region.